1. irrational
2. 5
3.16 and 25
4. between 3 and four
Answer:
angle 1 =135
Step-by-step explanation:
it is 180 degrees total. We know that there are two angles that have a ratio to 3:1. So, assign x to 2. Since 1 = 3x, we do 3x+x =180
4x=180
x=45 or angle 2
180-45=135 or angle 1
Multiply angle 2 by 3 to check if its correct
School bus : 9 tons = 9*2000 = 18,000 pounds
Horse : 1,100 pounds
Elephant : 5,500 kilograms = 5,500*2.2 = 12,100 pounds
Grand piano : 15,840 ounces = 15,840/16 = 990 pounds
So the answer is
Answer:
1. 
2. 
Step-by-step explanation:
1. 
Do cross multiplication

Distribute 3 through the parentheses

Move 3x to left hand side and change it's sign

Collect like terms

Divide both sides by 3

Calculate

The value of x is 1
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2. 
Do cross multiplication

Distribute 2 through the parentheses
Similarly, distribute 6 through the parentheses

Move 12n to left hand side and change it's sign
Similarly, move 48 to right hand side and change it's sign

Collect like terms

Add the numbers : 48 and 2

Divide both sides by -10

Calculate

The value of n is -5 .
Hope I helped!
Best regards! :D
Amplitude is 5
period is 360/20 = 18 degree
Im lazy to do graph